I'm counting 7 max this year (I'm assuming that's what the original post meant). They had 3 prior to the deadline-their own plus the Rockets and Nets. They picked up 2 in each of the Andre Miller and Spencer Hawes trades.

I was following ESPN's Twitter feed and they were joking about the 76ers owning the 2nd round, but then reported that at least a few of their acquisitions were future 2nd round picks (ie: not 2014). I haven't seen a confirmed final tally of 2014 2nd round picks though.

I'd like to know what percentage of second round picks from multiple drafts much less a single draft turn into serviceable players. I guess with that many they could package a few as fillers in trades or to move into the first round. Doesn't seem like anything to get excited about.

Wiggins isn't slipping. In the ones that "matter" (DX, Chad Ford, nbadraft.net) he's top 3, which is where he's been for a while..and it seems like the top 3 have distanced themselves from the field (Wiggins, Parker, Embiid).
You never know what happens on draft night, but so far I would say the most talked about players for the top 5 are Embiid, Wiggins, Parker, Exum and either Randle or Vonleh.